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Automation and templating

Render device configs from data, then drive a multi-router OSPF rollout from one idempotent playbook.

4 challenges · ~4 h · every step earns its own verified proof

  1. Express a VLAN layout once and render it for every switch.

  2. Turn an allow-list into an ACL, so the policy is data instead of hand-editing.

  3. Render a whole OSPF fabric from a vars file and prove it converges.

  4. The full job. One Ansible run brings up OSPF on three routers, idempotently.